I've been on three different leases (5 years) in SE Montana and it seems to be very property dependent. I saw 180" plus bucks 3 of the 5 years and killed none of them. There are big deer there, but not in great numbers and you need good access to hunt them ($$).

In 2011, I killed a 171" 3x4 and considered it a consolation prize for my time/effort in Montana. I don't plan on heading back anytime soon.